COHR Pullback Improves Risk-Reward but Valuation Still Rich

What happened

Coherent's post-earnings slide to around $333 has improved its risk-reward profile, but the stock still trades at 145.6x earnings and 49.5x EV/EBITDA, embedding aggressive expectations for sustained AI optical demand and successful 6-inch indium phosphide ramp. The company's manufacturing edge and NVIDIA-backed demand visibility are real, yet cash conversion remains weak, with nine-month operating cash flow of only $10 million against a $699 million inventory build. The pullback does not yet offer a sufficient margin of safety; the DeepValue report's attractive entry is $285, reflecting the need for gross margin confirmation and inventory normalization. While AI datacenter demand is robust and the 6-inch capacity ramp is on track, the market is already pricing in sustained 41% datacenter growth and margin expansion. Without evidence of improving free cash flow and sustained non-GAAP gross margins above 39.6%, the current valuation leaves little room for error.

Implication

The investment case hinges on converting indium phosphide capacity into cash generation; a meaningful entry opportunity may emerge if the stock revisits $285-$300, where the risk-reward becomes more attractive.

Thesis delta

No material shift in the investment thesis. The post-earnings pullback makes the risk-reward somewhat more balanced, but the stock remains fully valued given execution risks around margin expansion and free cash flow conversion.